These are aweful buildings. I think you should just delete this world right away. Just kidding, these are some of the nicest builds I've seen. My feedback would be do nothing, they are awesome. Oh and welcome back!

I'd say your next step in developement would be landscaping on the sides of the homes. For example, you might leave the native trees, plants, and decorations, but you might add a couple half blocks as roads, ground lamps, other plants, pond and bridge, statues, ect., let your creativity run wild.